费恩曼物理学讲义（第二卷）（英文版）

    For some forty years Richard P. Feynman focussed his curiosity on the mysterious workings of the physical world, and bent his intellect to searching out the order in its chaos. Now, he has given two years of his ability and his energy to his Lectures on Physics for beginning students. For them he has distilled the essence of his knowledge, and has created in terms they can hope to grasp a picture of the physicist's universe. To his lectures he has brought the brilliance and clarity of his thought, the originality and vitality of his approach, and the contagious enthusiasm of his delivery. It was a joy to behold. . The first year's lectures formed the basis for the first volume of this set of books. We have tried in this the second volume to make some kind of a record of a part of the second year's lectures--which were given to the sophomore class during the 1962-1963 academic year. The rest of the second year's lectures will make up Volume III.

20世纪60年代初，美国一些理工科大学鉴于当时的大学基础物理教学与现代科学技术的发展不相适应，纷纷试行教学改革，加利福尼亚理工学院就是其中之一。该校于1961年9月至1963年5月特请著名物理学家费恩曼主讲一二年级的基础物理课，事后又根据讲课录音编辑出版了《费恩曼物理学讲义》。本讲义共分三卷，第1卷包括力学、相对论、光学、气体分子动理论、热力学、波等，第2卷主要是电磁学，第3卷是量子力学。全书内容十分丰富，在深度和广度上都超过了传统的普通物理教材。
当时美国大学物理教学改革试图解决的一个主要问题是基础物理教学应尽可能反映近代物理的巨大成就。《费恩曼物理学讲义》在基础物理的水平上对20世纪物理学的两大重要成就——相对论和量子力学——作了系统的介绍，对于量子力学，费恩曼教授还特地准备了一套适合大学二年级水平的讲法。教学改革试图解决的另一个问题是按照当前物理学工作者在各个前沿研究领域所使用的方式来介绍物理学的内容。在《费恩曼物理学讲义》一书中对一些问题的分析和处理方法反映了费恩曼自己以及其他在前沿研究领域工作的物理学家所通常采用的分析和处理方法。全书对基本概念、定理和定律的讲解不仅生动清晰，通俗易懂，而且特别注重从物理上作出深刻的叙述。为了扩大学生的知识面，全书还列举了许多基本物理原理在各个方面(诸如天体物理、地球物理、生物物理等)的应用，以及物理学的一些最新成就。由于全书是根据课堂讲授的录音整理编辑的，它在一定程度保留了费恩曼讲课的生动活泼、引人入胜的独特风格。
《费恩曼物理学讲义》从普通物理水平出发，注重物理分析，深入浅出，避免运用高深烦琐的数学方程，因此具有高中以上物理水平和初等微积分知识的读者阅读起来不会感到十分困难。至于大学物理系的师生物理工作者更能从此书中获得教益。
1989年，为纪念费恩曼逝世一周年，原书编者重新出版本书，并增加了介绍费恩曼生平的短文和新的序言。我们按照新版的原本进行了翻译。

CHAPTER 1. ELECTROMAGNETISM
CHAPTER 2. DIFFERENTIAL CALCULUS OF VECTOR FIELDS
CHAPTER 3. VECTOR INTEGRAL CALCULUS
CHAPTER 4. EKECTRISTATUCS
CHAPTER 5. APPLICATION OF GAUSS'LAW
CHAPTER 6. THE ELECTRIC FIELD IN VARIOUS CIRCUMSTANCES
CHAPTER 7. THE ELECTRIC FIELD IN VARIOUS CIRCUMSTANCES(Continued)
CHAPTER 8. ELECTROSTATIC ENERGY
CHAPTER 9. ELECTRICITY IN THE ATMOSPHERE
CHAPTER 10. DIELECTRICS
CHAPTER 11. INSIDE DIELECTRICS
CHAPTER 12. ELECTROSTATIC ANALOGS
CHAPTER 13. MAGNETOSTATICS
CHAPTER 14. THE MAGNETIC FIELD IN VARIOUS
CHAPTER 15. THE VECTOR POTENTIAL
CHAPTER 16. INDUCED CURRENTS
CHAPTER 17. THE LAWS OF INDUCTION
CHAPTER 18. THE MAXWELL EQUATIONS
CHAPTER 19. THE PRINCIPLE OF LEAST ACTION
CHAPTER 20. SOLUTIONS OF MAXWELL'S EQUATIONS IN FREE SPACE
CHAPTER 21. SOLUTIONS OF MAXWELL'S EQUATIONS WITH CURRENTS AND CHAGES
CHAPTER 22. AC CIRCUITS
CHAPTER 23. CAVITY RESONATORS
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For some forty years Richard P. Feynman focussed his curiosity on the mysterious workings of the physical world, and bent his intellect to searching out the order in its chaos. Now, he has given two years of his ability and his energy to his Lectures on Physics for beginning students. For them he has distilled the essence of his knowledge, and has created in terms they can hope to grasp a picture of the physicist's universe. To his lectures he has brought the brilliance and clarity of his thought, the originality and vitality of his approach..